Dear All
I did a sales order for a customer and Prepayment invoice is done . After that Cash is received is against prepayment invoice. But when I tried to ship and invoice this order , it shows Gen prod Posting Group must have a value in sales line. Document type order.doc no ..and line no ..It Cannot be zero or empty.
But I could directly ship and invoice for the same customer for same product from same location without a prepayment. so why after doing prepayment ,sales order could not be converted to invoice.